Portland's Retro Gaming Expo is being held at the DoubleTree Hotel on Saturday and Sunday.

The expo is made up of three areas: the Freeplay Arcade, where visitors can play 30 full-size arcade games and 40 home video game consoles; the Theater, where there will be a number of speakers and panels, including past winners of the Nintendo World Championships; and the Vendor Marketplace, where 35 vendors will be selling class video games.